Silencer for firearms.



0. J. BAILEY.

'SILENCER FOR FIREARMS.

APPLICATIoN FILED JULY 20. 191e'.

Patented Dee. 5, 1916.

www@

INVENTOR- h'verJnW wnNEssEs ATTOR-N EY OLIVER J'. BAILEY, 0F FLORENCE, MASSACEIUSETTS.

SILENCER FOR FIREARMS.

T o all yuwmmizf may concern:

Be it known that I, OLIvER J. BAILEY, a

citizen of the United States, residing at Florence, in the county of Hampshire and State of .Massachusetts, have invented certain new and useful Improvements in Silencers for Firearms, of which the following is a specification.

This invention relates more particularly to a device adapted to be attached to the muzzle of a lire-arm whereby the explosion occurring at the end ofthe muzzle will be smothered for preventing a report when the lire-arm is discharged.

@ne of the objects of the invention is to provide a structure which shall be adapted to be releasably mounted on the muzzle of a fire-arm and adapted to diminish the explosion regardless of the impact of the gases as they escape from the barrel of the firearm, the construction being especially adapted to withstand great pressure.

A further object of the inventionl is the provision of a'plurality of diaphragms designed to divert the gases from the trajectory so that they may expand and be ejected from the rear of the casing in which the explosion occurs.

Another object of the invention is the provision of an ejecting tube through which the gases are ejected for releasing and diminishing the pressure in the casing, the tube being designed to break up the hot gases as they pass through the tube whereby they may be less exit at the end of the tube.

A further object of this invention is the provision of a silencer for fire-arms which consists of comparatively few parts and is simple in construction, but durable and well adapted to withstand the rough usage to which devices of this character are ordinarily subjected.

For a full description of the invention more quicklv cooled and thus insure a noise- Vand the advantages and merits thereof, referenc'e is to be had to the following description and the accompanying drawings, wherein is illustrated the preferred form of my invention, and in which- Figure 1 is a fragmentary elevation of a rifle barrel partly in section, showing the silencer attached thereto. Fig. 2 is an end elevation of the silencer. Fig. 3 is a detail Specification of Letters Patent.

Patented Dec. 5, 1916.

Application filed .Tuly 20, 1916. Serial No. 11t),393.

sectional perspective of one of the wire gauze sleeves within the ejecting tube.

The rifle barrel A is of the usual formation and has the front sight B mounted adjacent Iits extreme forward end. Formed on the exterior of therifle barrel at the end thereof is a plurality of screw threads which are adapted to register with the screw threads formed on av coupling l which embracesthe end ofthe rifle barrel A andvis provided with a central opening through which the projectile passes when the firearm is discharged. Interposed between the' coupling l and the end of the barrel isa gasket 2 which insures an air-tight joint at the end of the barrel of the re-arm. Secured to the coupling and supported thereby is the casing 3 which comprises an elongated member of pear-shape in cross section thus providing a large upper portion 4 and a relatively7 small lower, portion 5. Thus two chambers, an expansion chamber 6 and an ej ect-ing chamber 7 are provided, the eX- pansion chamber being considerably larger in diameter than theejecting chamber. The longitudinal center line of the explosion chamber 6 is in alinement with the central bore of the fire-arm and, therefore, the proj ect-ile passes directly through the longitudinal center of the explosion chamber 6..

Each end of the casing is provided with an.

opening through which the projectile'passes when the fire-arm is discharged.

For diverting the gases from the trajectory into the ejecting chamber andalso forl reducing' the explosion which occurs at the end of the rifle barrel, I provide a plurality .of diaphragms 8 which are substantially frusto-conical in formation and are provided with flanges 9 which are adapted toV be attached to the inside ofthe casing 3. The diaphragms 8 are arran'ged'in a series extending longitudinally through the casing and have their angularly disposed surface extending at an angle toward the front end Aof the casing so that the gases are diverted from the center of the casing while the proj ectile is passing through the casing. A central circular aperture is formed in each diaphragm for permitting the` passage of the projectile. Thel frusto-oonical shape ofthe diaphragms is especially desirable' when the heated gases cause the diaphragms to ybe intensely heated, thus causing them to eX- pand and retract as they are gradually heated and cooled. The expansion and retraction will not warp, or disturb the diaphragms, their conical shape permitting them to expand and retract with the casing thus assuring an unobstructed pathI for the projectile through the casing. y

Each diaphragm 8 is provided with a curved lip 10 which, as shown by Fig. 1 of the drawing, is curved rearwardly and its rextreme lower edge is disposed at the longitudinal center of the ejecting chamber 7. Thus, when the gases are diverted by the diaphragms, the same will be led into the ejecting chamber and the pressure will cause them-to seek an exit through the opening 11 at the rear end of the ejecting chamber 7.l Integrally formed with the cylindrical portion 5 of the casing is an ej ecting tube 12 the interior of which forms communication between the ejecting chamber and the atmosphere. By integrally 'forming the tube 12 at the longitudinal center line of the lower portion 5, the tube is disposeddirectly beneath the barrel A of the lire-arm. Ar-

ranged within the tube 12 "is a plurality of wire gauze cylinders or sleeves 13. These cylinders or slee-ves 13 are closed at each end. As shown by Fig. 1 of the drawing they are slightly spaced apart to provide a series of doubl'e'foraminous walls through which the gases must pass when they are ejected through the tube 12. T he wire gauze sleeves therefore, provide an eiicient means for thoroughly breaking up and agitating the gases as they pass through the tube 12 so that when they reach the end ofthe tube their force is materially reduced and they are greatly cooled so that they enter the atmosphere'noiselessly.

Mounted on the eXtreme end of the ejecting tube 12 is a wire gauze mantle 14 of cylindrical formation and having one end obstructed by the foraminous wall 15 and its opposite end open so that a portion of the mantle 14 tothe'tube 12.

mantle may extend over the end of thetube 12.v A collar 16 is employed to fasten the This mantle 14 is constructed of ine wire mesh or gauze and is adapted to assist the wire gauze sleeves 13 when the-continued use of the tire-arm overtaXes the sleeves 13 and causes a slight report when they gases reach the\ atmosphere at the end of the ejectingy tube. An absolutely noiseless discharge of the gases is thereby effected regardless of the number of times that .the tire-arm is discharged.

From the foregoing it will `be observed that a very simple and durable silencer for fire-arms has-been provided, the details of which embodv the preferred form.' I desire it to be understood however, that slight changes in the minor details of construction may be made without departing from the l being provided spirit of the invention` or the scope of the claims hereunto appended. I claim:

1. A silencer for tire-arms including a casing comprising superposed cylindrical portions having their interiors communicating to provide a silencing chamber and an ejecting chamber, and a plurality of frusto-conical diaphragms arranged independently of each other and secured within the silencing chamber and having their lower edges disposed above said ejectiiig chamber.

2. A silencer for tire-arms including a casing comprising superposed cylindrical portions having their interiors communicating to provide a silencing chamber and an ejecting chamber, and a plurality of frusto-conical diaphragmsarranged independently of each other and secured within the silencing chamber and having their lower edges disposed above said ejecting chamber, the said silencing chamber opening into the atmosphere at the front end of the casing and the said ejecting chamber opening into the atmosphere at the rear of said casing.

3. A silencer for lire-arms including a casing comprising superposed cylindrical portions having their interiors communi,- cating to provide a silencing chamber and an ej ecting chamber, and a plurality of frusto-conical diaphragms arranged independently of each other and secured within the silencing chamber and having their lower edges disposed above said ejecting chamber,l

and a lip formed on each diaphragm and eX- tending into said ejecting chamber.

4. A silencer for fire-arms including a casing comprising superposed cylindrical portions having hollow interiors to provide a silencing chamber and an ejecting chamber, a plurality of frusto-conical diaphragms arranged within the casing, each diaphragm being provided with a plurality of flanges secured to the interior of the silencing chamber, each end of the casing and the center of each diaphragm being provided with a circular opening in alinement with Vthe longitudinal center of the silencing chamber, and a rearwardly curved lip formed on each diaphragm and having its edge disposed; at the longitudinal center line of the ejecting `chamber, the said casing being provided with an eXit in. its rear wall in alinement with the center line of the ej ecting chamber.

5. A silencer fory ire-arms including a casing comprising superposed cylindrical portions having hollow interiors to provide a silencing chamber andan ejecting chamber, a plurality of frusto-conical diaphragms arranged within the casing, each diaphragm with a plurality vof ianges secured to the interior of the silencing chamber, each 'vend of the casing and the center .of each diaphragm being provided with a circular opening in alinement with the longitudinal center ofthe silencing chamber, a rear- 'Wardly curved lip formed on each diaphragm and having its edge disposed at nthe longitudinal center line of the ejecting chamber, the said casing being provided with an exit in its rear wall in alinement with the center line of the ejecting chamber, and an ejecting tube integrally formed with the casing at the rear'wall thereof and having its interior communicating with the said exit from the ejecting chamber.

6. A silencer for fire-arms including a casing having a silencingl chamber and an ejecting chamber, a plurality of diaphragms arranged within the silencing chamber, means carried by the diaphragmpfor diverting the gases from the silencing chamber 4into the ejecting chamber, anejecting tube integrally formed with thecasingr and eX- tending rearwardly fromthe ejecting chamber, and means carried by the interior of the ejecting tube :for agitating the gases as they enter the said tube from the ejecting chamber.

7. A silencer for fire-arms including a casing having a silencing chamber and an ejecting chamber, a plurality of diaphragms arranged Within the silencing chamber, means carried by the diaphragm for diverting the gases from the silencing chamber into the ejecting chamber, an ejecting tube integrally formed with the casing and extending rearwardly from the ejecting chamber, and a plurality of foraminous sleeves disposed within the said tube and having their ends arranged in superposed relation to each other.

8. A silencer for fire-arms including a casing having a silencing chamber and an ejecting chamber, aplurality'ofdiaphragms arranged within the silencing chamber, means carried by the diaphragm for diverting the gases from the silencing chamber into the ejecting chamber, an ejecting tube integrally formed with the casing and eX- tending rearwardly from the ejecting chamber, a. plurality of foraminous sleeves dis` posed Within the said tube and having their ends arranged in superposed relation to each other, and means mounted on the end of the tubey for further agitating the'gases as they leave the tube.v

9. A silencer for fire-arms including a casing having a silencing chamber and an ejecting chamber, a plurality of diaphragms arranged within the silencing chamber, means carried bythe diaphragm for diverting the gases from the silencing chamber `into the ejecting chamber, an ejecting tube integrally formed with the casing and eX- 'tending rearwardly from the ejecting chamber, a pluralityy of foraminous sleeves disposed Within the said tube and having their ends arranged in superposed relation to each other, a mantle constructed of foraminous edges terminating material mounted upon the end of the tube and a vcollar for securing the said mantle to the tube. y

10. A silencer for lire-arms including a casing having a silencing chamber and an ejecting chamber, a plurality of diaphragms arranged within the silencing chamber, means carried by the diaphragm for diverting the gases from the silencing chamber into the ejecting chamber, an ejecting tube integrally formed with the casing and eX- tending rearwardly from the ejecting chamber, a plurality of foraminous sleeves disposed within the said tube and having their ends arranged in superposed Vrelation to each other, the end of each sleeve being provided with a foraminous wall whereby a series of double foraminous walls arev provided when the said sleeves are assembled with the said fsion chamber and a plurality of lips carried b v the said diaphragms and having their at the longitudinal center line of the said ejecting chamber.

l2. A silencer for lire-arms including a casing having a plurality of diaphragms arranged therein, an ejecting tube integrally formed with the casing and communicating therewith, and a plurality of oraminous 'sleeves carried by the said tube.

'13. A silencer -or lire-arms including a casmg, the said casing bemg pear-shaped 1n crossl section to provide a large upper portion and a relatively small lower portion, a

plural-ity of diaphragms arranged in the said large portion, and means carried by the diaphragms for diverting the gases from the said large portion of the casing into the small portion thereof.

s 14. A silencer for fire-arms including a casing shaped to provide relatively large and small chambers intercommunicating for their full length, a plurality of diaphragms arranged within the -said large chamber and each provided with a plurality of flanges circumferentially spaced apart on the periphery of each diaphragm and adapted to be attached to the inside of the casing, and means formed by curving a portion of each of said diaphragms for leading the gases from the-said large chamber into the said small chamber and Idirecting their course toward the opposite direction from that in which they enter the said casing.

15. A silencer for fire-arms including a casing shaped to provide relatively large and small intercommunicating chambers, a

v plurality of diaphragms arranged within In testimony whereof I afx my signature the large chamber, and a rearwardly curved. in presence' of two witnesses.

lip integrally formed with each diaphragm the said casing having al1-exit provided ai?, y OLIVER J' BAILEY' 5 -the rear of the .sa-id. small chamber, the ter- Witnesses:

minal of each curved lip being disposed in THEO. BAILEY,

Valnement with the said exit. WiLLIE BELIVEAN; 

